Closure for jars, bottles, and like receptacles.



PATENTED JUNE 4, 1907.

No. 855.695.l

M. D. CONVERSE. GLOSURE PGR JARS, BOTTLES, AND LIKE BEGBPTAGLES.

APPLICATION FILED 1111.14, 1907.

@wat WM UNITED sTArns PATENT orrroia.

MASC/lill. l). CONVERSE, OF

ASSIGNHGNTS, Tt) UOiYLANl) 3 CLOSURE FOR JARS, BOTTLES, AND LIKE RECEPTACL'ES,

Application iil Tf1 all 'uf/mml it muy e/nwrn:

Be itltriown thatV which )Iy for bottles, jars, and more particularly metallic caps, incir fing a sealing niediuni of and adapted cork or other `suitable material,

to have the lower de ieiidiinr edife ther n o tur-nel vor i suitable mechanical appliance,

bent under the annular' shoulder of the hottles, Jiars or other receptacles in sealing. l 'llir- :tbjeets of my invention are, to prol vide as an article of ininnifacture, an integral i great ellicieney, l not liable to premature rupture or loosening l on applying, or after having been applied; to reduce. the oost of manufacture of such articertain disadvantages heretofore experienced in the use of kindred closures, and especially to insure neatness of appearance when applied, and greater safety and facility for its removal in unsettling of the receptacle to which it has been applied, without the use of a key or other irriplement., and, fi'rrtrierinore, so that no part thereof shall remain attached to the neck of the receptacle; all which is mainly at tained by a novel form. and construe-tion, incori'iorating a preferably annular and preferably nonfweakening,

in4 the act of remo developed upon the lower metallic cap of this class of cles to overcome further crease, whereby, shear-like niargi n Specification of Letters Patent.

ei January 14,1907. Serial to. 352,201,

l, Mascirri. D. Coy-I vniisn, a citizen of the l nr ted States, reside' at. .\e\\'ark, iii the counhv of Essex and l internally made val the i tortli and claimed.

i is a sid-e. elevation ol my invention as pleted article ol iiiariulacturebottle, jar or like receptacle. sectional, shows the same a bottle, B, in sealing, l thereof, j',tur1ied under ot the bottle neck l 4 (side elevation), show i eol, by i clearly show the shearing or tearing l developed on the lower portieri along ternal f.tease,a. Figs. 5 (anale-v sealed receptacle. but less desirable, construe-tion, and shows a inodilieati times desirable te further carry out a fully described in detail.

throughout the several figures:

my invention is intdoin A, is the cap, which is turning under or crimping ot' its lower in sealing, which my iiiiproi'ed cap admits., oi and which may be advantageously employed on of luy-invention,

Patented 'J une 4, 1907.

ects, all which are hereinafter t'nllj set In the drawings: Figuri- 1, partly slional,

(with sealing niediiiin iiclosed), before application to a Fig. 2, partly applied iii place on with the lower edge the annular sl if luider Fig. I3 (a plan vieta) and the vnia-nner of reil moral from the bottle in unsealing, and

action of the upper st-itl'cncd shear-like margin, j,

the in- Y ation) and t3 (an underside View) show a inodilied tluted to further carry out my iiivrn'tion by reinforring or stillening of the removable lower portion, as well as to eiihaneeftlie iioatness and Finished appearance of the trap iipoithe Fig. 7, shows a 'possibleA .1. lig. b sonreprinciple in the saine; all which will hereinafter be Like letters indicate corresponding parts The term cap, used throughout this spoeii'ieation, in place of closure, is for convenir-nee, and is considered equally appropi'iate, since one Vintegral Piece. best niade of quite portion, in the making of the crease owing thin and fairly duetilo sheet metal. f, is the to automatieally out or the upper portion at nulai creased but point, leaving, also, further used as a move-d.

.Further objects and advantages of my in .'entifin will hereinafter appear.

lily invention consists ot an integrally made metallic Cap or closure, having certain no ve\ (leviers in form incorporated, eo-operating to insure the foregoing and other Dbl depending lower edge of theV saine.

a., is an acute annular ably from the interior, depth of' the cap, in the depending be the heo' from the inside of the cap in its perfora-ting, otherwise weakening cap at that point.

result, 1o wit: crease af'iitely;v

aoture, or preferably so ast'onior( ly' the metal from the inside without cutting, reducing the thickness or of the nietal of the Othszr moans or form of too which will aeeoi'np'iishhe'saine preferred creasefmade preferabout -inidway ol' the Il an ge,

and'preferably made by means of a roll hat mg a thin peripheral non-'cutting edge. ap-

ening the strength of the metal, may be employed.

At tlze point., i, (shown in Figs. 1, 2, 6 and '7) the lower part et the tl nge up te this crease is slit divided, or cut away, as shown, preferably so as to forni a very narrow space or gap, with semi-circular boundaries laterally, and preferably on each side of this gap there is formed, by embossing from the inside, outwardly extended and preferably semi-spherical projection?. the objects of which will be hereinafter shown. Instead of this gap, i, a mere vertical cut from the crease line, a, downward, may be employed.

In Figs. 5 and (i, g, g, are iutings or spaced indentations of the lower edge,f, of the cap, which, by means ot' suitable mechanical appliance, I sometimes make use of in applying my improved cap to secure the salite to the lannular shoulder of receptacles in sealing the same. This form of crimping not only is desirable, as a cooperative auxiliary to the slight outward curvature, l, of the crease, a, for the purpose ol' greatly still'ening that portion of the cap below the crease line, a, against buckling, bending or breaking in the operation of unsealing, so that in the prying oli' of this lower portion (see Figs. 3 and 4) the shear like margin, j, thus reinforced, may perform its service unfailingly, to cut or tear itself free from the upper portion of the cap, but incidentally gives a neat and finished appearance to the cap when in place upon the receptacle sealed. For a like object (to stiften the lower portion Aand reinforce the shearlike margin, j) the annular externally depressed groove, e, which should be impressed slightly beyond the vertical plane of the depending sides of the cap, I make use of in 'some cases, locating the same just below the 'crease line, a.

In Fig. 7, there are two parallel annular internal creases, a, a, and semi-spherical pro- Aject-ions, b, b.

C, in the several figures represents a disk of cork or other suitable sealing medium, to engage the top, h, of the bottle, inclosedl in the cap.

Bottle caps (closures) ot'types analogous to the class to which my invention is related, are invariably fixed u on the receptacle in the sealing ooeration y the application of pressurel for lioldingthe saine with the inclosed cork tirrnlxv into contact with the top of the bottle, greatly compressing the cork, 'while the' lower depending edge of a holding band, member or skirt, is turned by mechanical means under the annular shoulder of the neck of the bottle.

I have. ascertained by man)T experiments that caps (closures) so applied cannot be made to be uniforml rolia-.ile and ellicient and integral, by emp oyincnt of a scored, eut,"` ;erlorated, rednceth or other- 6 5 wise weakened ytea-ring line" or tearing i sealing -scored,

strip." for the reason that, if so made, the latent expansive energy ol' the cork, or other sealing medium, so compressed., will, when the extraneously applied pressure is released, often force thc caps to rupture prematurely along these weakened "tearing lines," and thus the bottle or other receptacle would not he securely or satisfactorily sealed, and also, that like results attend in case ol' internal or gaseous pressures from the contents of the receptacle.

My invention ,wholly ohviates these dilliculties, and for the reason that I do not, in the preferred construction of my invention, make use of a. cut, partially cut, "perforated," "reduced," or otherwise weakened, tearing line," or "tearing strip," but instead, retain the en- 4tire strength of the metal at the desired point of separation throughout its lineal extent, lzy employing an annular crease, made from the inner side of the cap, and the pr. nciple of a. still'ened shear-like margin developed thereby as a concomitant to this preferred and peculiar form of crease line construction in my improved ca i, whereby, without reduction of the thickness, or in any other way weakening" of the metal, the lower portion of the cap is manually separable and rcmov` able from the upper portion annularly, with the greatest case and facility, and without the use necessarily of a key or other im )lement, and whereby all the native strength of the metal at the shearing point is retained while upon the receptacle sealed to oppose premature rupture or loosening therefrom.

In the removal or unsealing operation, in the case of a cap made to emlzody my present; invention, as by the thumb or linger-nail (see Fig. 3), at the slit or gap one end or one ol' the semi-spherical ends, l), of the lower portion of the cap is pried ol' a little way, which is accomplished easily; then immediately the still' shear-like edge, j, (Fig. 4), developed and reinforced on this lower part at the crease, a, operates continuously to eut or tear itself free, along this crease, from the upper portion, this shear-like simulation and action being further insured by the auxiliary co-o )erative stillness and rigidity imparted to t iis edge, j, and the lower portion of the cap by the underturned Hange (le, in Fig. 4), or by the special moditied lluted or indented edge, g, g, (Fig. 5), or by the modification employing the external annular indentation or groove, e (Fig. S), in combination with either of the former, operating to the sante IOO IIO

end, to wit: to keep this lower portion and its evolved shear-like margin, y', from buckling, breakir g or bending in the operation of forcing itI otf and unscaling of a receptacle, and so that this lower part acting as a lever is constantly increased in length, and the. operation thus instantly facilitated. This un? in 'eh'. preferred construction may be accomplished from the opposite direction of cap, adapted to inclose a sealing medium and ln the modified cap shown in Fijn' 7, two of this same sort of creases are employed, with the result, of course, that two shear-like margins` are developed, and act in unsealinlf;

but, manifestly, in this form. twice as mueh i l l l l l i i i force must. be exerted (other conditions beingr E equal), in the unsealing act as in the single crease, and by use of this form the extreme lower underturned edge ofthe flange remains upon the neck ofthe receptacle.

l t willbe seen that in these several forms oi' my invention the automatic or self-euttiner or tearing away of the lower from the upper portion at the erase, U, le ves-a neat. cover above for temporary subsequent use on the unsealed receptacle, and that (except in the ease of modification shown in Fig. 7, as just stated) no part of the cap remains attached to the bottle after unsealing.

rlhe semi-spherical embossinfrs, b, are employed to prevent the edges of the metal either side'olt the gap or cut, i, fromcatching anything.r in handlingr and packing' of the receptacles sealed therewith, which they etl'cctually do by protruding; outwardly vbeyond the vertical plane of said edges, as shown distinctly in Figs. 3, 5, 6 and S, and presenting a rounded, smooth exterior.

Having;r differentiated and described my invention, though susceptible of. many minor modifications without departing from the spirit thereof, what l claim als new, and desire to secure by Letters Patent, is:

Claims.

1. An article of manufacture of the class described, comprising an integral metallic to be applied to receptacles as set forth: havincr an annular non-weakeningrase in its depending flange. and provided with. a gap from said crease downward. and with an ontwardly protrudingr 'rounded projection laterally ol' said gap and below the crease.

2. An article of manufacture of the class described, comprising an integral metallic cap, adapted to incluse a sealingr medium and to be applied to receptacles as set forth, having an annular non-wcz'tlienine,r crease in its depending' flange, and provided with a gap from said crease downward, and with out.- wardly protruding rounded projections laterally of' said gap and below the crea-sc.

3. An article ot' manufacture ot' the class -described, comprising an integral metallic cap, adapted to inclosc a. sealing medium and to be applied to receptacles as set forth, having an annular non-weakening crease in its depending flange, and provided with a. dividin cr cut from said crease downward.

4. An article of manufacture of the class described, -comprisingl an integral metallic cap, adapted to inelosc a sealing,r medium and to be applied to receptacles as set fortluhaving an annular manually rupturalile crease midway the depth of its depending flange, and provided with a dividing cut from said crease downward.

In testimony whereof I havesigncd my name to this specification in the presence of two subscribing witnesses.

MASCIIIL D. CONVERSE.

vVitnesses:

J. FRED. CRYER, Rum' IILsTnD. 

